<script type="text/javascript">
  var a = [3, 5, 23];
  var b = [];
  var b = [];
  var c = new Array();
  b[0] = 'hello';
  b[1] = 6;
  c[5] = true;
  c[7] = null;
  alert(a + "\n" + b + "\n" + c
    + "\na array length:" + a.length
    + "\nb array length:" + b.length
    + "\nc array length:" + c.length);
</script>
